Home / 20,571.56-30,850.96-7,422.22

Finding the Fourth Proportional to 20,571.56, 30,850.96 and 7,422.22

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Solution

The fourth proportional to 20,571.56, 30,850.96 and 7,422.22 is: 11,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.56 : 30,850.96 = 7,422.22 : x
  2. Step 2: Convert to fraction form
    20,571.56/30,850.96 = 7,422.22/x
  3. Step 3: Cross multiply
    20,571.56x = 30,850.96 × 7,422.22
  4. Step 4: Simplify right side
    20,571.56x = 228,982,612.33
  5. Step 5: Solve for x
    x = 228,982,612.33/20,571.56
  6. Step 6: Final answer
    x = 11,131.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.